package edu.fiu.ann.threshold;

public abstract class ThresholdFunction {
	/**
	 * The output of function.
	 * @param input the input
	 * @return
	 */
	abstract public double f(double input);
	
	/**
	 * The output of partial derivation of this function.
	 * @param input	the input
	 * @return	the result
	 */
	abstract public double partialDerivative(double input);
}
